When you have a drunken urge to go to the toilet and defecate into your hands and use the excrement to relieve oneself with a masturbation ritual.
This is a disturb sexual pleasure which originated from Northern England.

When some little bitchboy is acting like a little tiny pee pee poo poo baby and messing up the group plans.

the act of rectal stimulation causing an ejaculatory response during defication.